Keep your phone number private with Signal usernames(signal.org)
1330 points by Josely | 798 comments
Signal blog post from February 2024 announcing usernames and settings that let users keep their phone numbers private from contacts.
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By default, Signal doesn't recall(signal.org)
432 points by feross | 327 comments
Signal blog post from May 2025 explaining that Signal Desktop on Windows now blocks screenshots by default to keep chats out of Microsoft Recall.
Signal Protocol and Post-Quantum Ratchets(signal.org)
621 points by pluto_modadic | 267 comments
Signal blog post by Graeme Connell and Rolfe Schmidt describing the addition of post-quantum ratchets (SPQR) to the Signal Protocol.
Quantum Resistance and the Signal Protocol(signal.org)
247 points by dm | 104 comments
Related stories
Keep your phone number private with Signal usernames(signal.org)
1330 points by Josely | 798 comments
Signal blog post from February 2024 announcing usernames and settings that let users keep their phone numbers private from contacts.
Backups Aren't Simple(filipovski.net)
318 points by afilipovski | 190 comments
Personal blog post by Aleksandar Filipovski arguing that backups are more complex than they seem, starting from a family story of losing photos to a reformatted drive.
ChatGPT Enterprise(openai.com)
808 points by davidbarker | 452 comments
OpenAI blog post announcing ChatGPT Enterprise, a business version of ChatGPT with enterprise-grade security, privacy, and enhanced capabilities.
Google is making private AI practical with homomorphic encryption(blog.google)
473 points by u1hcw9nx | 276 comments
Google Security blog post by Jeremy Kun on how Google is using homomorphic encryption to make privacy-preserving AI practical.
Registration without a phone number on Signal will use zero-knowledge proofs(community.signalusers.org)
343 points by Cider9986 | 174 comments
Signal community forum thread in Feature Requests discussing registration without a phone number, with a reply explaining Signal's use of zero-knowledge proofs.
Android 14 introduces cellular connectivity security features(security.googleblog.com)
379 points by akyuu | 151 comments
Google Security Blog post announcing Android 14's new cellular connectivity security features, such as options to disable 2G and null-cipher connections.